Node.js API Masterclass with Express and MongoDB - Async/Await Middleware

The video tutorial introduces the DRY principle and its application in try-catch blocks within controller methods. It explains how to use async/await functions as middleware in Express and demonstrates creating an async handler to simplify error handling. The tutorial covers implementing the async handler in controller methods, testing its functionality, and validating error handling. Finally, it introduces Mongoose middleware and its potential applications.

What is the 'dry principle' mentioned in the text, and how does it apply to coding practices?

Explain the purpose of using async/await functions in middleware as described in the text.

What is the role of the 'async handler' in the context of error handling?

What are the benefits of cleaning up controller methods by removing repetitive try/catch blocks?

How does the implementation of the async handler improve the structure of controller methods?

What are some examples of errors that the error handler is designed to catch?

Describe how Mongoose middleware can be utilized in the context of saving a boot camp.